White nectarine tree named ‘NECTARDALI’

ABSTRACT

A new and distinct variety of white nectarine tree denominated ‘NECTARDALI’ which has fruits with high eating quality and very long shelf life without alteration before and after harvesting, with a semi-sweet white flesh at maturity time, and a red pigmentation into and around the stone cavity, and an attractive skin with a luminous purple red blush on skin surface, on a red background.

Botanical classification: Prunus persica (L.) Batsch.

Variety denomination: ‘NECTARDALI’.

This application claims priority of Community Plant Variety Right No. 2021/3101 filed on Nov. 30, 2021 which is hereby incorporated by reference in its entirety.

The new variety named ‘NECTARDALI’ is also known as 8C.13.410.15 NB or ASF15139. Indeed, before giving a name to a new and distinct variety of fruit tree, a provisional reference is assigned, considering the references of a tree in orchard. This provisional reference is constituted firstly with the number of the parcel on which the tree has grown, then the number of the line, the tree number and finally the year of selection. Then before being named ‘NECTARDALI’, the provisional reference of this white nectarine tree variety was 8C.13.410.15, corresponding to the tree 410 located in line 13 of the parcel 8C and selected during the year 2015. The letters “NB” are related to the first letters of the type of tree in French (NB for “Nectarine Blanche”, that means “white nectarine”). Once the hybrid selected, the breeder assigned a clone reference that begins with the letters “ASF” followed by the year of selection and a number corresponding to the maturity order. The final name is only assigned once the application has been filed and the name approved after its publication in the official bulletin. For the variety ‘NECTARDALI’, the clone reference was ‘ASF15139’.

BACKGROUND OF THE NEW VARIETY

The present invention relates to a new and distinct variety of white nectarine tree, Prunus persica (L.) Batsch, which has been given the variety denomination ‘NECTARDALI’.

This new tree produces fruits with a long shelf life without alteration both on the tree after growth completion and after harvesting, very good eating quality, semi-clingstone white and slightly greenish flesh fruits, generally with a red pigmentation around and into the stone cavity, for fresh market during September in the Pyrénées-Orientales department, France.

ORIGIN OF THE VARIETY

The ‘NECTARDALI’ white nectarine tree originated from a cultivated area of the south of France, in the Pyrénées-Orientales department, where it was tested.

This place is under a Mediterranean climate (a temperate area), on the Mediterranean coastline. Winters are gentle and summers warm and dry. The amount of days with temperatures below 7° Celsius can vary between 600 and 1200 hours per year. The place is sunny, with 2400 to 2800 hours of sunny days per year on average. The prevailing wind is called ‘Tramontane’: it dries the air, clears the sky from clouds, but its intensity can be strong and affect the harvest, fruit quantity and/or quality. Marine moisture does not affect the place. Precipitations are irregular through the year and from one year to another. The amount of rainy days does not exceed 80 days per year and are mostly found in Spring and Autumn. In May and October, very intense precipitations occasionally happen. Summer is dry with a few thunderstorms.

The ‘NECTARDALI’ variety results from a controlled pollinated cross between the white nectarine variety named ‘NECTARDUCHESSE’ (not patented) which was used as the seed parent, or female parent, and the white flat nectarine variety named ‘CAKELOVE’ (U.S. Plant Pat. No. 24,107) which was used as the pollen parent, or male parent.

The ‘NECTARDALI’ variety was obtained by hybridizing and propagated by grafting on a ‘INRA® GF677’ (non-patented) rootstock trees. It has been determined to have unique tree and fruit characteristics making it worthy for commercial fresh fruit production. There are no known effects of the standard rootstock trees set forth above on the scion cultivar. Asexually propagated plants remained true to the original tree and all characteristics of the tree, and the fruit were transmitted. The plant was reproduced asexually by us in Les Régalines, Route d'Alenya, La Prade de Mousseillous, 66200 ELNE, Pyrénées-Orientales, France. More particularly, the plant was reproduced by grafting.

SUMMARY OF THE VARIETY

The new and distinct variety ‘NECTARDALI’ white nectarine tree blooms at the end of February or during the first week of March near Elne in the Pyrénées-Orientales department, France. The blooming period is considered medium. However, it was observed that its date of blooming seems to be highly dependant on climatic conditions.

The first fruit of ‘NECTARDALI’ ripens generally late to very late in the season, namely mid-September or at the end of September. However, it was observed that its date of maturity seems to be highly dependant on climatic conditions.

DESCRIPTION OF THE DRAWINGS

In the accompanying drawing, which are as nearly true as it is reasonably possible to make in a color illustration of this type:

FIG. 1 is a color photograph showing trees of the new variety ‘NECTARDALI’ in orchard.

FIG. 2 is a color photograph showing a close view of the trunk of a tree in orchard.

FIG. 3 is also a color photograph showing a close view of the trunk of a tree in orchard.

FIG. 4 is a color photograph which depicts the flower buds at different development stages, and the reverse and side views of the flower and the reproductive organs with petals removed, of the new variety ‘NECTARDALI’ also named ‘8C.13.410.15NB-ASF15139’.

FIG. 5 is a color photograph which shows the upper and lower sides of leaves and different views of three typical specimens of the fruit of the new variety ‘NECTARDALI’ also named ‘8C.13.410.15NB-ASF15139’ at ripening time, one fruit having been cut in half with the pit being left in one of the halves for depicting leaves, fruit flesh, pit and pit cavity of the new variety.

FIG. 6 is a color photograph showing different views of the stone of the new variety ‘NECTARDALI’ also named ‘8C.13.410.15NB-ASF15139’ and the kernel of the stone.

The views of trees, flowers, leaves and fruits have been photographed in their third growing season (second year of production).

Due to chemical development, processing and printing, the flowers, stones and fruits depicted in these photographs may or may not be accurate when compared to the actual botanical specimen.

DETAILED BOTANICAL DESCRIPTION

The trees, flowers, and fruits may vary in slight detail due to variations in soil type, cultural practices, and climatic condition. The potential for commercial production of fresh fruits by ‘NECTARDALI’ is high, due to fruit very long shelf life without alteration after harvesting.

Trees are medium to strong vigorous and large stature half-standing in a semi-flared out aspect. The anthocyanic coloration of flowering shoot is present excluding brushwood side away from sun. The time of beginning of flowering is considered medium; flowering starts at the end of February. The type of flower is showy (rosette) with medium petal size. Petals are pink. Leaf glands are present and reniform. The fruit flesh is white at complete maturity. The fruit flesh usually shows a red pigmentation into the stone cavity and radiating around the stone cavity. The fruit skin is medium thick, with a luminous purple red blush on a red background. The new variety ‘NECTARDALI’ presents fruits of bicolor coloration, the most beautiful presentation compared to the varieties of the same period of maturity, of very good taste and very sweet. The stone is semi-clingstone and its size is medium. Fruit taste is semi-sweet, aromatic and with a high level of sugars.

Compared to ‘NECTARMOON’ white nectarine variety (not patented), the fruits of ‘NECTARDALI’ usually ripen approximately during the same period. However, the fruit flesh of the new variety ‘NECTARDALI’ is white, whereas the fruit flesh of the similar variety ‘NECATRRMOON’ is considered white and slightly greenish.

Compared to ‘NECTARLAM’ white nectarine tree (not patented), the fruits of the new variety ‘NECTARDALI’ usually ripen approximately during the same period. The fruit flesh of the new variety ‘NECTARDALI’ is considered to have higher tasting qualities in comparison with the fruit flesh of the similar variety ‘NECTARLAM’.

Compared to its seed or female parent, i.e., the ‘NECTARDUCHESSE’ (not patented) variety, the new variety ‘NECTARDALI’ ripens 15 to 20 days before it.

Compared to its pollen parent ‘CAKELOVE’ (U.S. Plant Pat. No. 24,107), ‘NECTARDALI’ ripens 45 to 50 days after.

DETAILED DESCRIPTION

Referring more specifically to the pomological details of this new and distinct variety of white nectarine tree, the following was observed on trees in their third growing season (second year of production) under the ecological conditions prevailing at the orchards located near the town of Elne, Pyrénées-Orientales departement, France. All observations have been done on rootstock cultivars. Used rootstocks were ‘INRA® GF677’ (non-patented) trees. All major color code designations are by reference to The R.H.S. Colour Chart (Fourth Edition) provided by The Royal Horticultural Society of Great Britain.

-   Tree:     -   -   Size.—Generally. — Considered large. The tree size the first             year was approximately 200 to 280 cm in height. The tree was             pruned during each following dormant season to a height of             approximately 250 cm. Current season shoots growth could             reach 80 cm in length. The tree size from the second year             (second and next years) reached a final height of 330 cm             including current season shoots length. The tree size is             consistently reduced to 250 cm the next years.         -   Spread.—Approximately 100 cm with a cylindrical shape. The             whole orchard was oriented to a central leader organization,             with tree lines spaced of 4.0 meters and trees spaced of 1.0             meter in a same tree line. As a result, tree spread was             about 100 cm and the orchard contained 2500 trees by             hectare.         -   Vigor.—Considered medium to strong.         -   Productivity.—Considered good and regular. Fruit set is             spaced by thinning to develop the remaining fruit into the             desired market sized fruit. The number of the fruit set             varies with the prevailing climatic conditions and cultural             practices employed during the bloom period and is therefore             not distinctive of the present variety. A reduce vegetation,             obtained with pruning or green pruning, approximately 1             month or 1 month ½ before harvesting fruits, significantly             promotes fruit qualities, especially growth, color and             firmness. Moreover, contamination risks due to monilia or             rot are significantly reduced. ‘NECTARDALI’ variety is not             much sensitive to cracking of pistil cavity, to cork             formation into peduncle cavity or to monilia.         -   Bearer.—Very regular. The fruit distribution is considered             homogenous on mixed branches and spurs having more than 1             year. Thinning of 2 fruits out of 3 was necessary for the             tree valorisation. Thinning was necessary every year during             the years of observation.         -   Form.—The ‘NECTARDALI’ variety has naturally a semi-flared             shape.         -   Density.—Considered dense.         -   Hardiness.—Hardy in all stone fruit growing areas of France             and especially where the chilling requirement is between 700             and 1200 hours. More particularly, experimentations on the             same orchard in Elne, Pyrénées-Orientales department, with             winter chilling requirement below 7.2° C. comprised between             700 hours and 1200 hours according to the specificities of             the year, namely 1031 hours in 2012-2013, 777 hours in             2013-2014, 893 hours in 2014-2015, 718 hours in 2015-2016,             825 hours in 2016-2017, 1017 hours in 2017-2018, 844 hours             in 2018-2019, 706 hours in 2019-2020, 822 hours in 2020-2021             and 700 hours in 2021-2022 showed a good behavior of the             tree in all cases. No injury with temperatures as low as             −12° C. in winter. Good resistance to late frosts. -   Trunk:     -   -   Diameter.—Approximately 40.0 to 46.0 millimeters in diameter             when measured at a distance of approximately 20.0             centimeters above the soil level for trees on fourth leaf             (or third year of production).         -   Bark texture.—Considered rough, with lenticels.         -   Lenticels.—Numerous lenticels are present. The number of             lenticels reaches 2 lenticels per cm². The lenticels range             in size of approximately 4.0 to 4.5 millimeters in width,             and about 1.0 to 1.5 millimeters in height.         -   Lenticel color.—The lenticels show a beige color (RHS Greyed             Orange 164 A or RHS Greyed Orange 164 B).         -   Bark coloration.—The bark has a brown to grey color (RHS             Grey 201 A) darker than the lenticels color. -   Branches:     -   -   Size.—The branches are pruned to approximately 1.0 meter in             length.         -   Diameter.—Average as compared to other nectarine varieties.             The current season shoots have a diameter of approximately             4.0 to 7.0 millimeters, and mature branches (two year's old             branches) have a diameter of approximately 10.0 to 15.0             millimeters.         -   Surface texture.—Smooth for current season shoots and rough,             with lenticels, for mature branches, wood which is several             years old has furrowed appearance.         -   Crotch angles.—Primary branches are considered variable, but             the crotch angles are generally 45 degrees from the             horizontal axis for current season shoots and 55° degrees             from the horizontal axis for two year's old branches. This             particular characteristic is not considered distinctive of             the variety, however.         -   Current season shoots.—         -   Internode length.—Generally 24.0 millimeters. Color. — The             color of new shoot tips is considered green (RHS Yellow             Green 145 A) on lower part of new shoot tips, whereas the             upper part is darker and colored in brown to purple (RHS             Greyed Purple 183 A), depending on the level on the tip and             the sunlight exposure.         -   Mature branches.—         -   Internode length.—Generally 28.0 millimeters.         -   Color of mature branches.—Brown (RHS Grey Brown N 199 C).         -   Lenticels.—Numerous lenticels are present on mature             branches. The number of lenticels reaches 3 lenticels per             cm². The size of lenticels is considered small on one year's             old shoots and medium on two-year-old shoots. The lenticel             shape is round with a diameter of approximately 1.0             millimeter on one-year-old shoots. The lenticel shape is             stretched round with a diameter of 2.0 millimeters on             two-year-old shoots.

Lenticel color: The lenticels on mature branches have a beige color (RHS Greyed Orange 164 B).

-   Leaves:     -   -   Size.—Considered medium for the species. The ratio leaf             length/leaf width is 3.689.         -   Leaf length.—The medium length is about 175.25 millimeters             with leaf petiole.         -   Leaf width.—The medium width is 47.5 millimeters.         -   Leaf form (in cross section).—Concave.         -   Leaf form.—Lanceolate.         -   Leaf base shape.—Round.         -   Leaf tip form.—Acute.         -   Leaf thickness.—Medium.         -   Leaf color.—Upper leaf surface. — Yellow Green (RHS Yellow             Green 147 A). Lower surface. — A slightly lighter green (RHS             Yellow Green 147 B) than the upper leaf surface color.         -   Leaf texture.—Smooth and glabrous on both upper and lower             surfaces of the leaf.         -   Leaf venation.—Pinnately veined.         -   Mid-vein.—Color. — Light green (RHS Yellow Green 145 C). The             color may evolve with maturity. Width. — Approximately 1.5             millimeters.         -   Secondary veins.—Color. — Light green (RHS Yellow Green 145             D).         -   Leaf margins.—Slightly undulating.         -   Form.—Considered crenate.         -   Uniformity.—Leaves are isolated or grouped by 2 or 3. In             this last case, one leaf of normal size is found with one or             two smaller leaves (at least 50% smaller).         -   Leaf petioles.—Size. — Considered small. Length. — About             10.0 to about 13.0 millimeters. Diameter. — About 1.5 to 2.0             millimeters. Shape. — Grooved.         -   Petiole color.—Upper petiole surface. — Green (RHS Yellow             Green 144 A or RHS Yellow Green 144 B). Lower surface. — A             slightly lighter green (RHS Yellow Green 144 C) than the             upper petiole surface color. Ratio leaf length/petiole             length. — Approximately 13.         -   Leaf glands.—Size. — Considered medium. Their length is             about 1.5 millimeter and their width is about 1.0             millimeter. Number. — Generally 2 to 3 glands per leaf.             Type. — Reniform. Margins. — Smooth and regular. Position. —             Alternate on the upper part of petiole. Color. — On young             leaves, leaf glands color is considered a light green (RHS             Yellow Green 145 A). On older leaves, leaf glands color             turns to a brown (RHS Brown 200 A to RHS Brown 200 B) color.         -   Leaf stipules.—Generally. — No leaf stipules were observed.             But as seen in the characteristic relative to the leaves             uniformity, it is possible to find leaves by groups of 2 or             3, with a normal-size leaf and smaller ones. -   Flowers:     -   -   Flower buds.—Generally. — At pre-floral stage of             development, the floral buds are conic in shape. Their form             is evolving until blooming, with variable dimensions. Just             before blooming, floral buds are approximately 8.0 to 9.0             millimeters wide and approximately 10.0 to 12.0 millimeters             long. The floral buds show a homogenous distribution on the             trees. Color. — This characteristic is dependent upon the             proximity to bloom. At pre-floral stage of development, the             bottom of the flower's buds, or calyx, or flower receptacle,             is of purple color (RHS Greyed Purple 187 A) on its outer             face. The inner face of the flower receptacle is orange             yellow (RHS Greyed Orange N163 C or RHS Greyed Orange N163             D). The corolla, formed by the petals, is generally of pink             color (RHS Red Purple 65 B or RHS Red Purple 65 C) on both             faces. Petals color shows an evolution until the end of             flowering.         -   Hardiness.—The buds are considered hardy under typical             central Pyrénées-Orientales departement climatic conditions.             No winter injury was noted during the last several years of             evaluation in the central Pyrénées-Orientales departement,             with winter temperatures as low as −10 degrees Celsius in             January. The current variety has not been intentionally             subjected to drought or heat stress, but the variety showed             a very good resistance in orchard to temperatures up to 42             degrees Celsius with an average temperature between 28 and             30 degrees Celsius during 3 weeks in summer.         -   Date of bloom.—The blooming time generally begins early in             March. The first bloom was observed on Mar. 10, 2018.         -   Blooming time.—Considered medium in relative comparison to             other commercial nectarine cultivars grown in the             Pyrénées-Orientales departement, France. The date of full             bloom is observed generally at the middle of the blooming             period. The date of bloom varies slightly with climatic             conditions and cultural practices. Thus, the full bloom was             observed in 2018, from March 10^(th) until March 18^(th),             from March 8^(th) until Mar. 15, 2019, from February 28^(th)             to Mar. 5, 2020, from February 25^(th) to Mar. 4, 2021, and             from February 19^(th) to March 3^(rd) in 2022.         -   Duration of bloom.—Medium, approximately between 8 to 10             days. This characteristic varies slightly with the             prevailing climatic conditions.         -   Flower type.—The variety is considered to have a showy type             of flower.         -   Flower size.—Considered medium. Flower diameter at full             bloom is approximately 31.0 to 35.0 millimeters.         -   Bloom quantity.—Considered high, approximately 65 to 70             flowers per meter, with a high rate of fruit set.         -   Flower bud frequency.—Generally 2 flower buds appear per             node, occasionally 1.         -   Petal size.—Generally. — Considered medium.         -   Length.—Generally between 15.0 and 16.0 millimeters.         -   Width.—Generally between 14.0 and 15.0 millimeters.         -   Petal form.—Round-shaped.         -   Petal count.—Five, sometimes more than five.         -   Petal arrangement.—Overlapping.         -   Petal texture.—Smooth on both upper and lower surfaces of             the petal.         -   Petal color.—At the stage F of blooming, when the flower is             fully opened, both surfaces of the petal are colored with a             pink (RHS Red Purple 65 B or RHS Red Purple 65 C) color when             young, becoming slightly darker until the end of blooming.         -   Fragrance.—Moderate floral fragrance.         -   Petal claw.—Form. — The claw is considered to have a narrow             form. Length. — About 1.0 to 1.5 millimeters. Width. — About             1.5 millimeters at the base. Color. — The petal claw usually             shows a pink color darker than the petal color (RHS Red             Purple 60 B).         -   Petal margins.—Generally considered slightly undulating.         -   Petal apex.—Generally. — The petal apices are generally             shaped as a wide dome.         -   Flower pedicel.—Length. — Considered medium and having an             average length of approximately 2.5 to 3.0 millimeters.             Diameter. — Considered average, approximately 1.0 to 1.5             millimeters. Color. — Green (RHS Yellow Green 144 A or RHS             Yellow Green 144 B).         -   Calyx.—Internal surface texture. — Smooth. Color. — At the             stage F of blooming, when the flower is opened, the inner             surface of the calyx, namely the flower receptacle, is             yellow orange to slightly greenish (RHS Greyed Orange N163             D). The outer surface of the calyx is considered of purple             color (RHS Greyed Purple 187 A or RHS Greyed Purple 187 B).         -   Sepals.—         -   Sepal count.—Usually 5 sepals. Surface texture. — The outer             surface has a short, fine pubescent texture. Margins. —             smooth. Size. — Medium. Length. — Approximately 4.0 to 5.0             millimeters. Width. — Approximately 4.0 to 4.5 millimeters.             Form. — Conic and round at the top. Color. — The upper             surface of the sepals shows a purple color (RHS Greyed             Purple 187 A or RHS Greyed Purple 187 B) whereas the lower             surface of sepals is considered greenish (RHS Grey Brown 199             A or RHS Grey Brown N199 A).         -   Anthers.—Generally. — Medium in length, approximately 1.0             millimeter. Shape. — Cordate. Color. — Depending on the             maturity stage, anthers are colored with a red (RHS Red             53 A) to a yellow color (RHS Yellow Orange 17C).         -   Pollen production.—Pollen is abundant and has a yellow color             (RHS Yellow 13 A or RHS Yellow 13 B) which may evolve with             maturity. The present variety is considered auto-fertile             (self-pollinating).         -   Pistil.—Number. — Usually 1. Generally. — Average in size.             Length. — Approximately 11.0 to 14.0 millimeters including             the ovary. Generally smaller to filaments in length when             considered without the ovary. Color. — Considered green to             light green (RHS Yellow Green N 144B or RHS Yellow Green             154 D) at the beginning of blooming period. Position. — The             pistil is positioned below the stamens.         -   Ovary.—Height. — Approximately 1.5 to 2.0 millimeters.             Diameter. — Approximately 1.5 to 2.0 millimeters. Color. —             Green (RHS Yellow Green N 144C). Pubescence. — Absent.         -   Stamens.—Size compared to petals. — The size of stamen is             smaller than the size of petals. Length. — Approximately             12.0 to 14.0 millimeters, usually higher than the pistil             length (considered without the ovary). Color. — White (RHS             White N 155 B) to pink (RHS Red Purple 62 B) depending on             the maturity stage.         -   Average number of stamens per flower.—Approximately 34 to 40             stamens per flower.         -   Stigma.—Diameter. — Approximately 0.75 millimeter. Color. —             Greenish yellow (RHS yellow Green 151 B). Shape. — Elliptic.             Position of the stigma compared to the anthers. — Below. -   Fruit:     -   -   Maturity when described.—Firm in ripe conditions (shipping             ripe).         -   Date of first picking.—Sep. 12, 2021.         -   Date of last picking.—The date of harvest varies slightly             with the prevailing climatic conditions. The ‘NECTARDALI’             variety has a mid-season date of picking, and a grouped             maturity. The maturity is grouped within 9 days and the             harvest is generally performed in two runs. Last known             picking times carry on from September 3^(rd) to September             10^(th) in 2018, from September 16^(th) to September 22^(th)             in 2019, from September 9^(th) to September 16^(th) in 2020,             from September 12^(th) to September 20^(th) in 2021, and             from September 10^(th) to September 18^(th) in 2022.         -   Size.—Generally. — Homogeneous in size, size A to 2 A.             Considered medium.         -   Average cheek diameter.—Approximately 66.0 to 68.0             millimeters.         -   Average axial diameter.—Approximately 62.0 to 64.0             millimeters.         -   Typical weight.—Approximately 186.0 grams. This             characteristic is high dependent upon the prevailing             cultural practices, and therefore is not particularly             distinctive of the variety.         -   Fruit form.—Generally. — Round, regular and symmetrical. The             fruit is generally uniform in symmetry, viewed from the             suture's plane.         -   Suture.—         -   Fruit suture.—The suture is usually wide-mouthed and             slightly marked when present, extending from the base to the             apex. No apparent callousing or stitching exists along the             suture line. Not pointed.         -   Ventral surface.—Form. — Smooth.         -   Apex.—Slightly depressed. Mucron. — Slightly marked. Closing             of the pistil cavity. — Very good. The pistil cavity is not             visible.         -   Stem cavity.—Average depth of the stem cavity is considered             medium, about 12.0 to 14.0 millimeters. Average width is             between 19.0 and 20.0 millimeters, and the stem cavity is             flared.         -   Fruit skin.—Thickness. — Considered medium and strong, and             the skin adherence to flesh is medium. Texture. — The             pubescence of the skin is absent. The fruit skin is smooth.             Taste. — Semi-sweet, sugary. Tendency to crack. — None             observed.         -   Color.—Blush color. — This blush color is a marbled purple             red (RHS Greyed Purple 187 B). The purple red blush covers             approximately 70% of the fruit skin surface on a red             background (RHS Red 48 A to RHS Red 48 B) on approximately             30% of the fruit skin surface. The percentage of the blush             on the fruit skin surface can vary and is generally             dependent upon the prevailing conditions under which the             fruit was grown. Ground color. — The ground color covers             approximately 30% of the fruit skin surface, and is             considered red (RHS Red 48 A to RHS Red 48 B). Lenticels. —             No lenticel.         -   Fruit stem.—Medium in length, approximately 6.0 to 8.0             millimeters.         -   Diameter.—Approximately 4.0 to 5.0 millimeters.         -   Color.—Pale green (RHS Yellow Green 145 A).         -   Flesh.—Ripens. — Very homogenously, slowly. The flesh has a             long shelf life. Texture. — Medium to firm, crunchy,             melting, at harvest maturity stage. Fibers. — Not fibrous.             Aroma. — Good presence. Semi-sweet, sugary and fruity.             Eating quality. — Considered good to very good, semi-sweet             and aromatic. Flavor. — Considered semi-sweet. The Brix is             generally superior to 14, with an average value at 15, and             acidity is very low. Juice. — Juicy at complete maturity.             The juice shows a cream color (RHS NN 155D). Brix. — The             medium Brix is 15 degrees. This characteristic varies             slightly between 14.1 and 16.2 with the number of fruits per             tree, prevailing cultural practices and the surrounding             climatic conditions. Flesh color. — The flesh is considered             white to slightly water green (RHS White 155 D), usually             with a red pigmentation (RHS Red 47 A) into the stone cavity             and radiating around the stone cavity on approximately 3.0             to 4.0 millimeters. -   Stone:     -   -   Type.—Semi-Clingstone, more or less semi-adherent depending             on the fruit maturity.         -   Size.—Considered medium for the variety. The stone size             varies significantly depending upon the tree vigor, crop             load and prevailing growing conditions.         -   Length.—Approximately 24.0 millimeters.         -   Width.—Approximately 19.0 millimeters.         -   Diameter.—Approximately 15.0 millimeters.         -   Form.—Elliptical.         -   Base.—Round.         -   Apex.—Shape. — The stone apex is short and pointed.         -   Stone cavity.—Considered medium in size, approximately 10.0             to 12.0 millimeters, with elliptic form and dimensions             corresponding to the stone's dimensions.         -   Stone surface.—Surface texture. — The pit is transversely             furrowed on its entire surface. Furrows are deeper and more             oblate on lateral sides. Ridges. — The surface texture is             generally characterized by more prominent ridges along the             ventral edges and at the apical tip.         -   Ventral edge.—Width. — Narrow. Approximately 2.0 millimeters             at mid-suture.         -   Dorsal edge.—Shape. — Grooved.         -   Stone color.—The color of the dry stone is generally             considered light brown (RHS Greyed Orange 164 B or RHS             Greyed Orange 164 C).         -   Tendency to split.—Splitting is absent.         -   Kernel.—Size. — The kernel is considered small. Length. —             Approximately 12.0 millimeters. Width. — Approximately 7.0             millimeters. Thickness. — Approximately 5.0 millimeters.             Form. — Considered elliptical. Pellicle. — The pellicle of             the kernel has a short pubescence. Color. — The kernel skin             is light brown colored (RHS Greyed Orange N167 A). The             almond, which is the seed of the kernel, is white (RHS White             155 B) and has a sweet taste. The kernel and its embryo are             mature at the time of fruit maturity.         -   Use.—The subject variety ‘NECTARDALI’ is considered to be a             white nectarine tree having a late to very late season of             maturity, and which produces fruits that are considered             firm, attractively colored with a luminous purple red.             Fruits have semi-sweet taste and are excellent for uncooked             consumption, crunchy or melting when at full maturity.             Fruits have excellent gustative qualities. Due to their             flesh quality, firmness and density, they can also be             commercialized as 4^(th) range product (packed fruit or             fruit in bags for example). And they are also useful for             both local and very long-distance shipping.         -   Keeping quality.—Remarkable. Fruits have a slow maturation             and a long shelf life both on the tree after growth             completion and after harvesting without alteration. After             growth completion, fruits are preserved more than one week.             After harvest, fruits are well preserved more than 2 weeks             at 2.0 degree Celsius.         -   Shipping quality.—Considered very good. The fruit of the new             white nectarine variety showed minimal bruising of the flesh             or skin damage after being subjected to normal harvesting             and packing procedures. Its resistance to handling during             harvest and packing and its long shelf life without             alteration after harvest easily permit 2 weeks-shipping at 2             degrees Celsius.         -   Resistance to insects and disease.—No particular             susceptibilities were noted. The present variety is not very             sensitive to Monilia or rot. The pistil cavity is completely             closed, generally without any cork formation.

Although the new variety of white nectarine tree possesses the described characteristics when grown under the ecological conditions prevailing near Elne, Pyrénées-Orientales departement, France, it should be understood that variations of the usual magnitude and characteristics incident to changes in growing conditions, fertilization, pruning, pest control and horticultural management are to be expected. 

I claim:
 1. A new and distinct variety of white nectarine tree named NECTARDALI as illustrated and described, characterized by fruits with high eating quality and very long shelf life without alteration before and after harvesting, with a semi-sweet white flesh at maturity time, and a red pigmentation into and around the stone cavity, and an attractive skin with a luminous purple red blush on skin surface, on a red background. 